It has been described as the "most invasive species" to ever hit Thailand - one which risks enormous damage to the environment, according to officials. Attempts to control it have seen crowds wading ...

Deep beneath the floodplains of Assam, scientists have uncovered a creature so unusual it seems almost alien. In a chance discovery that is reshaping understanding of India's hidden biodiversity, ...

A genetic takeover on a scale never seen before among vertebrates is taking place in the western US. An alien fish is not only hybridising with the locals, but also breaking down the genetic barriers ...